If my understanding is correct.. When you get the static smiley then ovulation will occur in the next 24-48hrs (although some websites say 12-24hrs so who knows)If you BD the day of the static smiley then the sperm should be there waiting for the egg to drop and hopefully increase your chances. BD the day after is also a good idea as that’s the actual day of ovulation
For optimal chances it's best to bd from day after af finishes and do every other day as sperm needs time to recoup and if you can do it day of 1st static and day after then day off and day again as you can actually ovulate later than the tests show too
I wanna know the answer to this too